Everyone has their own life and separate experiences, that is why you should always be polite. Being polite can get you far in life. When you are polite all the time people respect you, tend to be nicer and considerate toward you. If someone is rude you don’t know what is going on in their mind/life, politeness will remind them that there are still good people in this world. Politeness shows people respect and represents that you are courteous. Respecting others and watching how you speak to them can open the doors to new opportunities, you will be seen as someone that others would like to work with.